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- Jeffrey A Fletcher, Martin Zwick
- The American naturalist
- 2006

Inclusive fitness and reciprocal altruism are widely thought to be distinct explanations for how altruism evolves. Here we show that they rely on the same underlying mechanism. We demonstrate this commonality by applying Hamilton's rule, normally associated with inclusive fitness, to two simple models of reciprocal altruism: one, an iterated prisoner's… (More)

- Jeffrey A Fletcher, Martin Zwick
- Journal of theoretical biology
- 2004

Although the conditions under which altruistic behaviors evolve continue to be vigorously debated, there is general agreement that altruistic traits involving an absolute cost to altruists (strong altruism) cannot evolve when populations are structured with randomly formed groups. This conclusion implies that the evolution of such traits depends upon… (More)

- Martin Zwick
- 2005

This paper is an overview of reconstructability analysis (RA), an approach to discrete multivariate modeling developed in the systems community. RA includes settheoretic modeling of relations and information-theoretic modeling of frequency and probability distributions. It thus encompasses both statistical and non-statistical problems. It overlaps with… (More)

Software packages for Reconstructability Analysis (RA), as well as for related Log Linear modeling, generally provide a fixed set of functions. Such packages are suitable for end-users applying RA in various domains, but do not provide a platform for research into the RA methods themselves. A new software system, Occam3, is being developed which is intended… (More)

- Jeffrey A Fletcher, Martin Zwick, Michael Doebeli, David Sloan Wilson
- Trends in ecology & evolution
- 2006

other types of curve might fit better, and few data at their lower ends are currently available. A third crucial question is how birds and their immediate dinosaurian relatives became small. Erickson [1], we think, misstates our results [10,11] when he says: ‘It was posited that selection favored reduced body size because it enabled decreases in wing… (More)

To achieve reduced training time and improved generalization with artificial neural networks (ANN, or NN), it is important to use a reduced complexity NN structure. A "problem" is defined by constraints among the variables describing it. If knowledge about these constraints could be obtained a priori, this could be used to reduce the complexity of the ANN… (More)

- Jessica A M Yeates, Christian Hilbe, Martin Zwick, Martin A Nowak, Niles Lehman
- Proceedings of the National Academy of Sciences…
- 2016

Many origins-of-life scenarios depict a situation in which there are common and potentially scarce resources needed by molecules that compete for survival and reproduction. The dynamics of RNA assembly in a complex mixture of sequences is a frequency-dependent process and mimics such scenarios. By synthesizing Azoarcus ribozyme genotypes that differ in… (More)

- Martin Zwick
- 1998

The ubiquity of hierarchical order is obvious, and the obvious is hard to explain, but a number of workers [1] have suggested the possibility of constructing a theory (or cluster of theories), rooted in such disciplines as thermodynamics, information theory, topology, and logic, which might reveal the underlying unity of a wide variety of branching and… (More)

- Adam Wright, Thomas N. Ricciardi, Martin Zwick
- AMIA
- 2005

The Medical Quality Improvement Consortium data warehouse contains de-identified data on more than 3.6 million patients including their problem lists, test results, procedures and medication lists. This study uses reconstructability analysis, an information-theoretic data mining technique, on the MQIC data warehouse to empirically identify risk factors for… (More)

- Martin Zwick
- 2002

Reconstructability analysis (RA) decomposes wholes, namely data in the form either of settheoretic relations or multivariate probability distributions, into parts, namely relations or distributions involving subsets of variables. Data is modeled and compressed by variablebased decomposition, by more general state-based decomposition, or by the use of latent… (More)